Effect of arsenic on photosynthesis, growth and yield of five widely cultivated rice (Oryza sativa L.) varieties in Bangladesh

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dc.contributor.author Rahman, MA
dc.contributor.author Hasegawa, H
dc.contributor.author Rahman, MA
dc.contributor.author Islam, MN
dc.contributor.author Miah, MA
dc.contributor.author Tasmin, A
dc.date.accessioned 2012-02-02T05:07:03Z
dc.date.issued 2007-01
dc.identifier.citation Chemosphere, 2007, 67 (6), pp. 1072 - 1079
dc.identifier.issn 0045-6535
dc.identifier.other C1UNSUBMIT en_US
dc.identifier.uri http://hdl.handle.net/10453/14606
dc.description.abstract A glass house experiment was conducted to investigate the effect of soil arsenic on photosynthetic pigments, chlorophyll-a and -b, and their correlations with rice yield and growth. The experiment was designed with three replications of six arsenic treatments viz. control, 10, 20, 30, 60, 90 mg of As kg-1 soil. Arsenic concentration in initial soil, to which the above mentioned concentrations of arsenic were added, was 6.44 ± 0.24 mg kg-1. Both chlorophyll-a and -b contents in rice leaf decreased significantly (p < 0.05) with the increase of soil arsenic concentrations. No rice plant survived up to maturity stage in soil treated with 60 and 90 mg of As kg-1. The highest chlorophyll-a and -b contents were observed in control treatment (2.62 ± 0.24 and 2.07 ± 0.14 mg g-1 were the average values of chlorophyll-a and -b, respectively of the five rice varieties) while 1.50 ± 0.20 and 1.04 ± 0.08 mg g-1 (average of five rice varieties) of chlorophyll-a and -b, respectively were the lowest. The content of photosynthetic pigments in these five rice varieties did not differ significantly (p > 0.05) from each other in control treatment though they differed significantly (p < 0.05) from each other in 30 mg of As kg-1 soil treatment. Among the five rice varieties, chlorophyll content in BRRI dhan 35 was found to be mostly affected with the increase of soil arsenic concentration while BRRI hybrid dhan 1 was least affected. Well correlations were observed between chlorophyll content and rice growth and yield suggesting that arsenic toxicity affects the photosynthesis which ultimately results in the reduction of rice growth and yield.
dc.publisher Pergamon
dc.relation.hasversion Accepted manuscript version
dc.relation.isbasedon 10.1016/j.chemosphere.2006.11.061
dc.title Effect of arsenic on photosynthesis, growth and yield of five widely cultivated rice (Oryza sativa L.) varieties in Bangladesh
dc.type Journal Article
dc.parent Chemosphere
dc.journal.volume 6
dc.journal.volume 67
dc.journal.number 6 en_US
dc.publocation Oxford, UK en_US
dc.identifier.startpage 1072 en_US
dc.identifier.endpage 1079 en_US
dc.cauo.name SCI.Faculty of Science en_US
dc.conference Verified OK en_US
dc.for 070302 Agronomy
dc.for 039901 Environmental Chemistry (Incl. Atmospheric Chemistry)
dc.personcode 112851
dc.percentage 60 en_US
dc.classification.name Environmental Chemistry (incl. Atmospheric Chemistry) en_US
dc.classification.type FOR-08 en_US
dc.edition en_US
dc.custom en_US
dc.date.activity en_US
dc.location.activity en_US
dc.description.keywords Arsenic
dc.description.keywords Rice
dc.description.keywords Photosynthesis
dc.description.keywords Chlorophyll
dc.description.keywords Growth
dc.description.keywords Yield
pubs.embargo.period Not known
pubs.organisational-group /University of Technology Sydney
pubs.organisational-group /University of Technology Sydney/Faculty of Science
pubs.organisational-group /University of Technology Sydney/Strength - Environmental Science
utslib.copyright.status Open Access
utslib.copyright.date 2015-04-15 12:23:47.074767+10
pubs.consider-herdc false
utslib.collection.history General (ID: 2)
utslib.collection.history School of the Environment (ID: 344)

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